The ScubaPro C370 is a standalone second stage regulator built for divers wanting a compact, air-balanced breathing performance without buying a full first-and-second-stage system. It's based on the compact C350 case and adds an air-balanced valve to that design, smoothing inhalation effort across varying depths and supply pressures. The casing is fibreglass-reinforced nylon, keeping the unit lightweight and taking up minimal space in a dive bag, which suits travel-focused divers as much as regular local use.

User controls include a diver-adjustable inhalation effort knob and a coaxial dive/pre-dive lever using Venturi-Initiated Vacuum Assist, helping reduce the risk of freeflow at the surface or in cold water. A large purge button remains easy to activate even with thick gloves. The exhaust tee is designed for improved work of breathing, and a compact hi-flow mouthpiece supports airflow and comfort across a range of mouth sizes. The unit weighs approximately 171g.

This second stage is available as standard in either graphite or white, with the front cover using ScubaPro's current colour-frame design. The graphite version ships with a graphite-coloured frame, and the white version ships with a matching white frame; all six available colour frames beyond these two are sold separately. Both variants use the same internal air-balanced mechanism, with the colour distinction limited to the frame and casing finish. This is a second stage only and does not include a first stage.